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Finding the Fourth Proportional to 699.38, 1,047.61 and 467.58

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Solution

The fourth proportional to 699.38, 1,047.61 and 467.58 is: 700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.38 : 1,047.61 = 467.58 : x
  2. Step 2: Convert to fraction form
    699.38/1,047.61 = 467.58/x
  3. Step 3: Cross multiply
    699.38x = 1,047.61 × 467.58
  4. Step 4: Simplify right side
    699.38x = 489,841.48
  5. Step 5: Solve for x
    x = 489,841.48/699.38
  6. Step 6: Final answer
    x = 700.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.